Home / 10,883.13-15,020.13-6,407.29

Finding the Fourth Proportional to 10,883.13, 15,020.13 and 6,407.29

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Solution

The fourth proportional to 10,883.13, 15,020.13 and 6,407.29 is: 8,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,883.13 : 15,020.13 = 6,407.29 : x
  2. Step 2: Convert to fraction form
    10,883.13/15,020.13 = 6,407.29/x
  3. Step 3: Cross multiply
    10,883.13x = 15,020.13 × 6,407.29
  4. Step 4: Simplify right side
    10,883.13x = 96,238,328.75
  5. Step 5: Solve for x
    x = 96,238,328.75/10,883.13
  6. Step 6: Final answer
    x = 8,842.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.